biologia plantarum

International journal on Plant Life established by Bohumil Němec in 1959

Biologia plantarum 51:584-588, 2007 | DOI: 10.1007/s10535-007-0128-3

Effect of glycinebetaine on function of thylakoid membranes in wheat flag leaves under drought stress

X.-X. Zhao1, Q.-Q. Ma1, C. Liang1, Y. Fang1, Y.-Q. Wang1, W. Wang1,*
1 Key Laboratory of Crop Biology of Shandong, College of Life Science, Shandong Agricultural University, Tai'an, Shandong, China

Two wheat cultivars, HF9703 (drought tolerant) and SN215953 (drought sensitive) were used to examine the effects of glycinebetaine (GB, 100 mM) on lipid composition and function of thylakoid membranes under drought stress. GB application mitigated negative effect of drought on Ca2+-ATPase and Hill reaction activities, chlorophyll content, gas exchange and photosynthesis. These positive effects of GB application maybe, in part, correlated with improving the lipid composition of the thylakoid membranes.

Keywords: Ca2+-ATPase; chlorophyll content; gas exchange; Hill reaction activity; lipids; Triticum aestivum
Subjects: chlorophyll a,b; chloroplast, thylakoid membranes; CO2 concentration, internal; drought stress and tolerance; gas exchange; glycinebetaine; Hill reaction; lipid peroxidation; photosystems 1,2; stomatal conductance; Triticum aestivum; wheat

Received: August 8, 2006; Accepted: March 12, 2007; Published: September 1, 2007  Show citation

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Zhao, X.-X., Ma, Q.-Q., Liang, C., Fang, Y., Wang, Y.-Q., & Wang, W. (2007). Effect of glycinebetaine on function of thylakoid membranes in wheat flag leaves under drought stress. Biologia plantarum, 51(3), 584-588. doi: 10.1007/s10535-007-0128-3
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